I cannot find examples for the Proto D21G using:
1) The DAC output (pin 18)
2) External Interrupts
Note: These are for the Indio (https://github.com/Industruino/libraries)
Is there another place I should be looking?
Thanks for your suggestions, i have added a section to our online docs: https://github.com/Industruino/libraries/blob/master/README.md#proto
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